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Alzheimer\u2019s disease is the most common cause of dementia and is linked to the spreading of pathological amyloid-\u03b2<\/i>\u00a0and tau proteins throughout the brain. Recent studies have highlighted stark differences in how amyloid-\u03b2<\/i>\u00a0and tau affect neurons at the cellular scale. On a larger scale, Alzheimer\u2019s patients are observed to undergo a period of early-stage neuronal hyperactivation followed by neurodegeneration and frequency slowing of neuronal oscillations. Herein, we model the spreading of both amyloid-\u03b2<\/i>\u00a0and tau across a human connectome and investigate how the neuronal dynamics are affected by disease progression. By including the effects of both amyloid-\u03b2<\/i>\u00a0and tau pathology, we find that our model explains AD-related frequency slowing, early-stage hyperactivation and late-stage hypoactivation. By testing different hypotheses, we show that hyperactivation and frequency slowing are not due to the topological interactions between different regions but are mostly the result of local neurotoxicity induced by amyloid-\u03b2<\/i> and tau protein.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
We will discuss about \u201cA multi-scale model explains oscillatory slowing and neuronal hyperactivity in Alzheimer\u2019s disease\u201d, Alexandersen, Christoffer G., et al., Journal of the Royal Society Interface\u00a020.198 (2023): 20220607. Abstract … <\/p>\n
Continue reading “Dongju Lim, A multi-scale model explains oscillatory slowing and neuronal hyperactivity in Alzheimer\u2019s disease”<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"template":"","meta":{"_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","_uag_custom_page_level_css":"","_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[219],"class_list":["post-7648","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-journal-club","cat_journal-club"],"yoast_head":"\nDongju Lim, A multi-scale model explains oscillatory slowing and neuronal hyperactivity in Alzheimer\u2019s disease - Biomedical Mathematics Group<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ibs.re.kr\/bimag\/event\/2023-05-19-jc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dongju Lim, A multi-scale model explains oscillatory slowing and neuronal hyperactivity in Alzheimer\u2019s disease - Biomedical Mathematics Group\" \/>\n<meta property=\"og:description\" content=\"We will discuss about \u201cA multi-scale model explains oscillatory slowing and neuronal hyperactivity in Alzheimer\u2019s disease\u201d, Alexandersen, Christoffer G., et al., Journal of the Royal Society Interface\u00a020.198 (2023): 20220607. 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